Best Under-Canopy LED Lights: 2026 Buying Guide

The complete kit: red-heavy 120W bars, a pair of stands for every bar, the Mini Controller and the cables each layout needs.

• 120W per bar
• 340 µmol/s per bar
• Up to 2.9 µmol/J
• IP66 sealed

• Kits from 1 to 16 bars, sized by Faven at two bars per 1.2 × 1.2 m
• Stands hold each bar at 20, 25 or 30 cm
• Works with any 0-10V controller, including the VIVOSUN GrowHub E42A

Know before you buyThe Mini Controller only dims. Switch the bars on and off with a timer set to the same schedule as your main light.

Tune the red balance to suit the light overhead, with a separate far-red channel and the CX2 controller that unlocks both.

• 120W + 15W far red
• R4–R9 spectrum
• Up to 2.9 µmol/J
• IP66 sealed

• Shift the spectrum to match an LED, HPS or greenhouse top light
• The CX2 sets its own on and off times and runs up to 100 bars per line
• A pair of stands for every bar

Know before you buyWithout the CX2 a Chroma bar runs at full power on a fixed spectrum, and the Faven Mini Controller will not work with it.

Two sealed bars at 3.0 µmol/J, the most efficient here, for less than either Faven two-bar kit.

• 2 × 120W bars
• 360 µmol/s per bar
• 3.0 µmol/J
• 120° beam

• Bars clip end to end, up to 15 on one control line
• 0-10V dimming from 40% to 100% through an RJ11 port, for VIVOSUN and TrolMaster controllers
• Passively cooled, with no fans to clog in a humid lower canopy

Know before you buyNo stands or brackets in the box: Aether suggest upturned pots as a simple support. Without a controller the bars run at full output.

Diodes on three sides throw light in a 300-degree pattern, so it works inside the crop rather than only below it.

• 120W
• More than 314 µmol/s
• About 2.6 µmol/J
• IP56

• Four channels: white, deep red, far red and UV, each set from a TrolMaster controller
• Built-in driver, with up to 16 bars on one 230V circuit
• Hang it between rows, or stand it on two ThinkGrow TSD-1 stands

Know before you buyThe ThinkGrow Model One UK power cord it needs is not in the box. Without a TrolMaster Tent-X or four-channel Hydro-X, the far red stays off.

One 150W bar on its own tripod stands, long enough to span a 1.2 m tent or a bench row.

• 150W
• About 420 µmol/s
• 2.8 µmol/J
• 118cm long

• Stands adjust from roughly 32 to 53 cm to sit under the leaves
• Power and daisy-chain cables included, for adding bars down a row
• Low heat, so it can sit close to the foliage

Know before you buyOne bar lights one 1.2 m row. Two rows of plants in a 1.2 × 1.2 m tent need two bars.

A full-spectrum 135W bar with a broad 150° beam, sold without stands if you would rather clip it to a tent frame.

• 135W
• Up to 370 µmol/s
• About 2.7 µmol/J
• IP66

• 0–10V dimming input for compatible controllers
• Over-temperature, over-voltage and short-circuit protection built in
• Several bars daisy-chain from one driver and dimmer

Know before you buyThe dimmer is sold separately. Raise the bar as the lower canopy fills in, so no leaves touch it.